Range hood

By setting a support between the fan and the partition, the problem of the fan shaking during transportation or use is solved, a stable connection between the fan and the box is achieved, and the overall stability and safety of the range hood are enhanced.

CN222836942UActive Publication Date: 2025-05-06QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
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Patent Information

Application Number
CN202421498973.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-05-06
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

The fan is prone to shaking during transportation or use, and the lack of an effective supporting structure in the existing technology leads to unstable connections.

Method used

A support is provided between the fan and the partition at its bottom. One end of the support is connected to the volute of the fan, and the other end is connected to the partition. The support is provided with weight-reducing holes and flanges to improve stability.

Benefits of technology

By setting the support parts, the connection stability between the fan and the box is improved, shaking and falling off are prevented, the load on the connecting parts is reduced, and the stability of the range hood during use and transportation is enhanced.

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Abstract

The utility model belongs to the technical field of range hood equipment, and particularly relates to a range hood. The range hood comprises a main box, the main box comprises a box body and a draught fan arranged in the box body and connected with the inner wall of the box body, a partition plate is arranged at the bottom of the draught fan, and a gap is formed between the partition plate and the draught fan; the main box further comprises a supporting piece, one end of the supporting piece is connected with a volute of the fan, and the other end of the supporting piece is connected with the partition plate. According to the range hood, the supporting piece is arranged between the draught fan and the partition plate at the bottom of the draught fan, supporting can be provided for the bottom of the draught fan, the connection stability between the draught fan and the box body can be improved, and the problem that the draught fan is prone to shaking in the transportation or use process can be solved.
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Description

Technical Field

[0001] The present application belongs to the technical field of range hood equipment, and specifically relates to a range hood. Background Art

[0002] A range hood, also known as a range hood or cooker hood, is a kitchen appliance that purifies the kitchen environment. Its working principle is to use a fan to inhale smoke and oil vapor, and then discharge them outdoors after purification through a filtration system.

[0003] The fan may generate certain vibrations when running at high speed. In order to reduce the transmission of vibration, the fan and the main housing of the range hood need to be fixed to avoid excessive fixation. In the prior art, flanges can be provided on the fan and the main housing respectively, and the flanges can be connected together by bolts to install the fan in the main housing; or, connecting holes are provided on the fan and the main housing, and bolts or screws are provided in the connecting holes to install the fan in the main housing.

[0004] However, during transportation or use, the fan is prone to shaking. Utility Model Content

[0005] The present application provides a range hood that can solve the problem of a fan being prone to shaking during transportation or use.

[0006] The present application provides a range hood, comprising a main box, the main box comprising a box body and a fan arranged in the box body and connected to the inner wall of the box body, a partition is provided at the bottom of the fan, and there is a distance between the partition and the fan;

[0007] The main box also includes a support member, one end of which is connected to the volute of the fan, and the other end of which is connected to the partition.

[0008] In a possible implementation, in the range hood provided in the present application, at least one weight-reducing hole is provided on the support member.

[0009] In a possible implementation, in the range hood provided in the present application, a first flange is provided around the weight-reducing hole, and the first flange is bent away from the volute.

[0010] In a possible implementation, in the range hood provided by the present application, the support member comprises a first fixing portion, a supporting portion, and a second fixing portion which are sequentially arranged;

[0011] The first fixing portion is connected to the volute;

[0012] The support portion is arranged obliquely, and the weight-reducing hole is provided on the support portion;

[0013] The partition is provided with a second flange, the second flange is bent toward the volute, and the second fixing portion is connected to the second flange.

[0014] In a possible implementation, in the range hood provided in the present application, at least one reinforcing rib is provided at the connection between the first fixing portion and the supporting portion; and at least one indentation is provided at the connection between the second fixing portion and the supporting portion.

[0015] In a possible implementation, in the range hood provided by the present application, a notch is provided on the second fixing portion, and one end of the notch is connected to an end of the second fixing portion away from the supporting portion;

[0016] At least one first connecting hole is provided on the second flange, a connecting piece is provided in the first connecting hole corresponding to the notch, and the connecting piece is inserted into the notch through the first connecting hole.

[0017] In a possible implementation, in the range hood provided in the present application, at least one groove is provided on the second fixing portion, and a nail hole is provided in the groove.

[0018] In a possible implementation, the range hood provided in the present application, the support member also includes two opposite third flanges, the third flange includes a first bending section and a second bending section, the first bending section and the second bending section are both bent away from the volute, the first bending section is located at two edges of the first fixing portion, and the second bending section is located at two edges of the supporting portion.

[0019] In a possible implementation, in the range hood provided in the present application, the support member is located on a side facing away from the air inlet of the fan.

[0020] In a possible implementation, in the range hood provided in the present application, at least one noise reduction component is further provided in the housing, the noise reduction component is connected to the housing, and the noise reduction component is located on the peripheral side of the fan.

[0021] The present application provides a range hood, comprising a main box, the main box comprising a box body and a fan disposed in the box body and connected to the inner wall of the box body, the bottom of the fan is provided with a partition with a gap between the fan and the fan; the main box also comprises a support member, one end of the support member is connected to the volute of the fan, and the other end of the support member is connected to the partition. By providing a support member connected between the fan and the partition at the bottom thereof, support can be provided for the bottom of the fan, which helps to improve the connection stability between the fan and the box body, and solves the problem that the fan is prone to shaking during transportation or use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 A schematic diagram of the structure of a range hood provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 The structural diagram of removing the main box;

[0025] Figure 3 for Figure 2 Schematic diagram of the internal structure of the middle box;

[0026] Figure 4 for Figure 3 Schematic diagram of the connection structure between the middle support and the partition;

[0027] Figure 5 for Figure 3 A schematic diagram of the connection structure between the middle support member and the partition from another perspective;

[0028] Figure 6 for Figure 3 Schematic diagram of the structure of the middle support.

[0029] Description of reference numerals:

[0030] 100-main box;

[0031] 200-cabinet;

[0032] 300-volute;

[0033] 400- partition; 410- second flange; 411- first connection hole; 412- connection piece; 413- second connection hole;

[0034] 500-support member; 510-first fixing portion; 511-avoidance groove; 512-third connecting hole; 520-support portion; 521-weight-reducing hole; 522-first flange; 530-second fixing portion; 531-notch; 532-groove; 533-nail hole; 540-reinforcement rib; 550-indentation; 560-third flange; 561-first bending section; 562-second bending section;

[0035] 600-noise reduction parts; 610-installation parts.

[0036] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0039] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0040] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0041] Unless otherwise stated, the term "plurality" means two or more.

[0042] As can be seen from the background technology, flanges can be respectively provided on the volute of the fan and the main housing of the range hood in the prior art, and the flanges can be connected together by bolts to install the fan in the main housing; or, connecting holes can be provided on the volute and the main housing, and bolts or screws and other connecting parts can be provided in the connecting holes to install the fan in the main housing. Since the fan may generate certain vibrations when running at high speed, it is necessary to avoid excessive fixation between the fan and the main housing, especially rigid fixing methods, otherwise the vibration of the fan may not be buffered and absorbed, and the vibration may be transmitted to other components and structures, which will increase noise and have the risk of damage; in addition, excessive fixation of the fan in the housing will make the disassembly operation more complicated, and it is not convenient for maintenance and replacement.

[0043] Therefore, the fans in the prior art often lack support, and the fans are prone to shaking during transportation or use.

[0044] To solve the above-mentioned problem, the present application provides a range hood, which can provide support for the bottom of the fan by setting a support member between the fan and the partition at its bottom, thereby helping to improve the connection stability between the fan and the casing, and solving the problem of the fan being prone to shaking during transportation or use.

[0045] Figure 1 A schematic diagram of the structure of a range hood provided in an embodiment of the present application; Figure 2 for Figure 1 The structural diagram of removing the main box; Figure 3 for Figure 2 Schematic diagram of the internal structure of the middle box.

[0046] Combination Figures 1 to 3 As shown, the present application provides a range hood, including a main box 100, the main box 100 includes a box body 200 and a fan arranged in the box body 200 and connected to the inner wall of the box body 200, a partition 400 is provided at the bottom of the fan, and there is a distance between the partition 400 and the fan; the main box 100 also includes a support member 500, one end of the support member 500 is connected to the volute 300 of the fan, and the other end of the support member 500 is connected to the partition 400.

[0047] Taking the side suction range hood as an example, the main box 100 is arranged in the upper half of the range hood to provide space for the installation of the fan. The rear side of the main box 100 has a mounting surface, which fits the wall and is connected to the wall. The box 200 is connected to the inside of the main box 100, and the box 200 is connected to the fan. The air inlet of the fan can face one side of the wall and communicate with the flue inside the range hood. When the fan is running, a negative pressure is formed at the air inlet so that the oil smoke is sucked into the range hood and enters the fan through the flue. The air outlet of the fan faces the top of the box 200 and is connected to the outdoor space or the public flue through a pipeline. The oil smoke inside the fan can be discharged outward through the air outlet. The top of the fan is fixedly connected to the top wall of the box 200, and there is a gap between the bottom of the fan and the partition 400 connected to the bottom of the box 200.

[0048] It can be seen that in order to isolate the fan vibration, the fan is equivalent to being set in the box 200 in a suspended manner, and the fan is fixed only by the connection between the top of the fan and the box 200. However, during the handling and transportation process, the complex and bumpy transportation environment may cause the fan to shake, thereby loosening from the box 200; or during use, the vibration of the fan may also affect the stability of the connection between the fan and the box 200, causing the connection to loosen or fail, affecting the normal operation of the range hood.

[0049] The range hood provided in the embodiment of the present application supports the support member 500 between the fan and the partition 400 provided at the bottom thereof. During use and transportation, on the one hand, it can support the weight of the fan, limit the fan, and prevent the fan from shaking or falling off; on the other hand, it can also limit the vibration amplitude of the fan during the vibration of the fan, reduce the load of the connecting member 412 connecting the fan and the box 200, and reduce the possibility of loose connection or failure. Therefore, by providing the support member 500, the stability of the fan during transportation and use is improved, and the problem of the fan shaking easily during transportation or use is solved.

[0050] Figure 6 for Figure 3 Schematic diagram of the structure of the middle support. Figure 6 As shown, in some embodiments, at least one weight-reducing hole 521 is formed on the support member 500 .

[0051] It is understandable that the range hood needs to be installed on a wall. In order to ensure the stability and safety of the range hood after installation, weight reduction of the range hood is of great significance. By providing the weight reduction holes 521 on the support member 500, the weight of the support member 500 can be effectively reduced to reduce the influence of the configuration of the support member 500 on the weight of the range hood, which helps to reduce the load on the wall and extend the service life of the wall. At the same time, it also helps to improve the simplicity and convenience of the range hood transportation and installation process.

[0052] Among them, the shape, size and number of the weight-reducing holes 521 can be flexibly determined in combination with actual usage requirements, and the present application does not impose any restrictions on this. Any hole that can achieve a weight-reducing effect is within the protection scope of the present application.

[0053] Combination Figure 6 As shown, in some embodiments, a first flange 522 is provided around the weight-reducing hole 521 , and the first flange 522 is bent away from the volute 300 .

[0054] The first flange 522 can increase the strength around the lightening hole 521, which helps prevent the support member 500 from being deformed or damaged near the lightening hole 521 during use, thereby ensuring that the support member 500 has sufficient strength and load-bearing capacity.

[0055] In addition, the first flange 522 is arranged around the weight-reducing hole 521, which can also increase the smoothness and roundness of the edge of the weight-reducing hole 521, reduce the risk of injury to personnel due to sharp edges during assembly, and improve safety of use.

[0056] Figure 4 for Figure 3 Schematic diagram of the connection structure between the middle support and the partition; Figure 5 for Figure 3 Schematic diagram of the connection structure between the middle support and the partition from another perspective. Figures 4 to 6 As shown, in some embodiments, the support member 500 includes a first fixing portion 510, a supporting portion 520 and a second fixing portion 530 which are arranged in sequence; the first fixing portion 510 is connected to the volute 300; the supporting portion 520 is arranged at an angle, and a weight-reducing hole 521 is opened on the supporting portion 520; a second flange 410 is provided on the partition 400, the second flange 410 is bent toward the volute 300, and the second fixing portion 530 is connected to the second flange 410.

[0057] Specifically, the partition 400 is also connected to the housing 200. A plurality of second connection holes 413 are provided on the second flange 410 of the partition 400, and the side of the second flange 410 facing away from the volute 300 is attached to the inner wall of the housing 200, and screws are provided in the second connection holes 413 to achieve connection between the partition 400 and the housing 200.

[0058] Among them, the first fixing part 510 and the second fixing part 530 are both in the shape of a plate, wherein the second fixing part 530 is arranged on the side of the second flange 410 close to the volute 300; a plurality of third connection holes 512 are arranged on the first fixing part 510, and each third connection hole 512 is evenly distributed on the plate surface of the first fixing part 510, and the first fixing part 510 is attached to the surface of the volute 300, and the connection between the first fixing part 510 and the volute 300 is realized by arranging a connecting member 412 such as a screw or a bolt in the third connection hole 512. Alternatively, the first fixing part 510 and the volute 300 can also be connected by other means, as long as there is sufficient connection strength, and the specific connection method is not limited in this application.

[0059] For example, the support part 520 is in the shape of a flat plate, and is located between the first fixing part 510 and the second fixing part 530, and the end of the support part 520 close to the first fixing part 510 is higher than the end of the support part 520 close to the second fixing part 530. By tilting the support part 520, the support effect is better, and the support member 500 can be prevented from occupying too much of the box.

[0060] in addition, when oil is attached to the support member 500, the inclined support portion 520 can also guide the oil, so that the oil flows along the inclined surface of the support portion 520 to the partition 400, and then guides the oil collecting box through the partition 400.

[0061] In other embodiments, the support portion 520 may also be a plate in a bent, arc-shaped or other form, and the present application does not impose any restrictions on this. Any plate that can be connected between the first fixing portion 510 and the second fixing portion 530 to provide sufficient supporting force is within the protection scope of the present application.

[0062] Among them, the first fixing part 510, the support part 520 and the second fixing part 530 can be integrally formed and made by bending sheet metal, and the weight-reducing hole 521 on the support part 520 can be formed by punching, so that the overall processing method of the support member 500 is simple and easy to implement. Of course, the first fixing part 510, the support part 520 and the second fixing part 530 can also be split, and the two adjacent parts are connected together by welding or screw connection. The connected support member 500 can provide the required supporting force, and this application does not limit this.

[0063] The volute 300 is a special impeller housing structure, and the spiral-shaped cavity inside it can guide the internal airflow. The volute 300 is usually provided with an uneven structure to improve the flow efficiency of the airflow, which leads to an irregular shape of the surface of the volute 300. If necessary, an avoidance groove 511 can be provided at one end of the first fixing portion 510 away from the supporting portion 520 to adapt to the shape of the surface of the volute 300, so as to improve the adhesion effect between the first fixing portion 510 and the volute 300.

[0064] In some embodiments, at least one reinforcing rib 540 is disposed at the connection between the first fixing portion 510 and the supporting portion 520 ; and at least one indentation 550 is disposed at the connection between the second fixing portion 530 and the supporting portion 520 .

[0065] By providing a reinforcing rib 540 at the connection between the first fixing portion 510 and the supporting portion 520, and providing an indentation 550 at the connection between the second fixing portion 530 and the supporting portion 520, the strength of the connection can be improved to prevent the connection from being deformed or broken after being compressed, resulting in insufficient supporting force, thereby ensuring the supporting effect on the fan. When there are multiple reinforcing ribs 540 or indentations 550, they are preferably distributed at equal intervals to ensure uniform force.

[0066] The reinforcing rib 540 and the indentation 550 both have opposite concave and convex surfaces, wherein the convex surface of the reinforcing rib 540 faces the side where the angle between the first fixing portion 510 and the supporting portion 520 is a poor angle, so as to more effectively improve the strength of the connection; the convex surface of the indentation 550 faces the side where the angle between the second fixing portion 530 and the supporting portion 520 is a poor angle, so as to more effectively improve the strength of the connection. The reinforcing rib 540 and the indentation 550 can be formed by stamping, and are easy to process.

[0067] In some embodiments, a slot 531 is provided on the second fixing portion 530, and one end of the slot 531 is connected to an end of the second fixing portion 530 facing away from the supporting portion 520; at least one first connecting hole 411 is provided on the second flange 410, and a connecting member 412 is provided in the first connecting hole 411 corresponding to the slot 531, and the connecting member 412 is inserted into the slot 531 through the first connecting hole 411.

[0068] Exemplarily, the connecting member 412 is a screw which is connected in the first connecting hole 411 , the screw cap is located on the side of the second flange 410 away from the volute 300 , and the screw body extends through the first connecting hole 411 to the side of the second flange 410 close to the volute 300 .

[0069] Through the provision of the slot 531, when installing the support member 500, the screw can enter the slot 531 from the end of the slot 531 that is connected to the support portion 520, so that the second fixing portion 530 abuts against the connecting member 412 through the slot 531, thereby achieving a supporting effect on the fan. At this time, the second fixing portion 530 can be parallel to the second flange 410 after installation, or have an angle between the second flange 410; the end of the second flange 410 that is away from the support portion 520 can abut against the plate surface of the partition 400, or can be suspended on the plate surface of the partition 400.

[0070] The connecting member 412 is inserted into the notch 531 to limit the support member 500 from moving along the Figure 5 The movement in the X-axis direction is limited, thereby limiting the shaking of the fan and improving the stability of the fan in the box body 200. In addition, since one end of the notch 531 is connected to the end of the support part 520, after the connecting member 412 is inserted into the notch 531, the support member 500 is Figure 5 There is a certain amount of margin in the Y-axis direction. This arrangement is to avoid excessive fixation between the support member 500 and the partition 400, so that the vibration of the fan cannot be buffered and absorbed. It also reduces the difficulty of disassembling the support member 500 and the fan, making it easier to repair and replace the fan.

[0071] In some embodiments, at least one groove 532 is defined on the second fixing portion 530 , and a nail hole 533 is defined in the groove 532 .

[0072] Combination Figure 6 As shown, the groove 532 on the second fixing portion 530 can be formed by press-forming. The setting of the groove 532 is equivalent to setting a structure to increase the strength on the second fixing portion 530, which helps to improve the strength of the second fixing portion 530 to prevent deformation or bending after force affects the supporting effect.

[0073] Due to the unstable transportation environment, bumps and vibrations are prone to occur during transportation, which affects the stability of the fan in the box 200. By setting a nail hole 533 in the groove 532, the nail hole 533 and the first connection hole 411 on the second flange 410 can be fixed together with screws during transportation to improve the connection firmness between the support member 500 and the partition 400 and avoid shaking of the fan during transportation. After transportation is completed, the screws are removed to make the support member 500 abut against the connection member 412 through the notch 531 to release the excessive fixation of the fan and the box 200, so that the vibration generated by the operation of the fan can be buffered and absorbed.

[0074] In some embodiments, the support member 500 also includes two relative third flanges 560, the third flange 560 includes a first bending section 561 and a second bending section 562, the first bending section 561 and the second bending section 562 are both bent away from the volute 300, the first bending section 561 is located at the two edges of the first fixing portion 510, and the second bending section 562 is located at the two edges of the support portion 520.

[0075] The third flange 560 can be formed by bending. For the convenience of processing, a notch is provided at the junction of the first bending section 561 and the second bending section 562 .

[0076] By providing the first bending sections 561 at both ends of the first fixing portion 510, the bending strength of the first fixing portion 510 is enhanced, the possibility of deformation of the first fixing portion 510 after being subjected to force is reduced, and the supporting effect is improved; by providing the second bending sections 562 at both ends of the second fixing portion 530, the bending strength of the second fixing portion 530 is enhanced, the possibility of deformation of the second fixing portion 530 after being subjected to force is reduced, and the supporting effect is improved.

[0077] In some embodiments, the support member 500 is located on a side facing away from the air inlet of the fan.

[0078] It can be understood that there is a flue in the range hood, which refers to a passage for discharging the sucked oil smoke to the outside, wherein the air inlet of the fan faces the flue so as to generate an air pressure difference at the entrance of the flue to provide suction, so that the oil smoke can enter the flue.

[0079] By arranging the support member 500 on the side of the fan away from the air inlet so as to keep the support member 500 away from the flue, it is possible to avoid the support member 500 from blocking the flue and reduce the impact on the air flow in the flue.

[0080] Combination Figure 3 As shown, in some embodiments, at least one noise reduction component 600 is further disposed in the box body 200 , and the noise reduction component 600 is connected to the box body 200 , and the noise reduction component 600 is located on the peripheral side of the fan.

[0081] Furthermore, at least one mounting member 610 is connected to a side of the noise reduction member 600 close to the box body 200 , and the noise reduction member 600 is connected to the box body 200 via the mounting member 610 .

[0082] When there is one noise reducing member 600, it is preferably arranged on the side of the volute 300 away from the air inlet; when there are multiple noise reducing members 600, in addition to being arranged on the side of the volute 300 away from the air inlet, they can also be distributed on the left and right sides of the volute 300. By arranging the noise reducing member 600 around the fan, it is helpful to isolate and absorb the vibration and noise generated by the fan, thereby reducing the diffusion range of the noise and improving the comfort of the working environment of the range hood.

[0083] The noise reduction component 600 is a noise reduction plate, which is usually composed of a sealing plate, a sound insulation material and a sound absorbing material. The noise reduction plate is a structural design method known in the art and will not be described in detail here.

[0084] Specifically, the range hood provided in the present application can provide support for the bottom of the fan by setting a support member 500 between the fan and the partition 400 at the bottom thereof, which helps to improve the connection stability between the fan and the box body 200, so as to solve the problem that the fan is prone to shaking during transportation or use; and a first flange 522, a second flange 410, a reinforcing rib 540 and an indentation 550 and other structures are set on the support member 500, which effectively improves the strength of the support member 500 and improves the supporting effect of the support member 500.

[0085] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A range hood, characterized in that: The main box includes a box body and a fan arranged in the box body and connected to the inner wall of the box body, a partition is provided at the bottom of the fan, and there is a distance between the partition and the fan; The main box also includes a support member, one end of which is connected to the volute of the fan, and the other end of which is connected to the partition.

2. The range hood according to claim 1, characterized in that: At least one weight-reducing hole is formed on the support member.

3. The range hood according to claim 2, characterized in that: A first flange is arranged around the weight-reducing hole, and the first flange is bent away from the volute.

4. The range hood according to claim 2 or 3, characterized in that: The support member comprises a first fixing portion, a supporting portion and a second fixing portion which are arranged in sequence; The first fixing portion is connected to the volute; The support portion is arranged obliquely, and the weight-reducing hole is provided on the support portion; The partition is provided with a second flange, the second flange is bent toward the volute, and the second fixing portion is connected to the second flange.

5. The range hood according to claim 4, characterized in that: At least one reinforcing rib is provided at a connection between the first fixing portion and the supporting portion; and at least one indentation is provided at a connection between the second fixing portion and the supporting portion.

6. The range hood according to claim 4, characterized in that: The second fixing portion is provided with a notch, one end of the notch is connected to an end of the second fixing portion away from the supporting portion; At least one first connecting hole is provided on the second flange, a connecting piece is provided in the first connecting hole corresponding to the notch, and the connecting piece is inserted into the notch through the first connecting hole.

7. The range hood according to claim 4, characterized in that: The second fixing portion is provided with at least one groove, and a nail hole is formed in the groove.

8. The range hood according to claim 4, characterized in that: The support member also includes two opposite third flanges, and the third flanges include a first bending section and a second bending section. The first bending section and the second bending section are both bent away from the volute, and the first bending section is located at two edges of the first fixing portion, and the second bending section is located at two edges of the supporting portion.

9. The range hood according to any one of claims 1 to 3, characterized in that: The support member is located at a side away from the air inlet of the fan.

10. The range hood according to any one of claims 1 to 3, characterized in that: At least one noise reduction component is also provided in the box body, the noise reduction component is connected to the box body, and the noise reduction component is located on the peripheral side of the fan.